(1900 - 2x) : 35 - 32 = 16

=> (1900 - 2x)  : 35 = 48

=> 1900 - 2x = 1680

=> 2x = 220

=> x = 110

vậy_

111 + 1818 : (6x - 37) = 129

=> 1818 : (6x - 37) = 18

=> 6x - 37 = 101

=> 6x = 138

=> x = 23

vậy_

(x : 3 + 45) x 67 - 31 = 8880

=> (x : 3 + 45) x 67 = 8911

=> x : 3 + 45 = 133

=> x : 3 + = 88

=>x = 264

vậy_

1).( 27,56 x 35 ) + ( 27,56 x 67 ) - ( 27,56 x 2)

= (964 + 1846,52) - 55,12

=2810,52 - 55,12

= 2755,4

2).( 4x 35 ) x ( 25 x 5 ) x 2

= ( 140 x 125 ) x2

= 17500 x 2

=35000

4). 3/10

5). 1188

6).  61/6

1)2756   2)35000   3)0   4)3/10   5)10/1/6

1,2755,4

2,35000

3,0

4,\(\frac{3}{10}\)

5,1188

6,\(\frac{61}{6}\)

a) ( x + 216 ) : 61 + 1 = 202

( x + 216 ) : 61 = 201

( x + 216 ) = 12261

x = 12045

b) 1818 : ( 6x - 37 ) + 1 = 19

1818 : ( 6x - 37 ) = 18

( 6x - 37 ) = 101

6x = 138

x = 23

c) ( x : 23 + 45 ) x 67 + 3 = 8914

( x : 23 + 45 ) x 67 = 8911

x : 23 + 45 = 133

x : 23 = 88

x = 2024

(x + 216) : 61 + 1 = 202

=> (x + 216) : 61 = 201

=> x + 216 = 12261

=> x = 12045

vậy_

1818 : (6x - 37) + 1 = 19

=> 1818 : (6x - 37) = 18

=> 6x - 37 = 101

=> 6x = 138

=> x = 23

vậy_

(x : 23 + 45) x 67 + 3 = 8914

=> (x : 23 + 45) x 67 = 8911

=> x : 23 + 45 = 133

=>x : 23 = 88

=> x = 2024

vậy_

\(a.\left(x+216\right):61+1=202.\)

\(\Leftrightarrow\left(x+216\right):6=201\)

\(\Leftrightarrow x+216=1206\)

\(\Rightarrow x=990\)

\(b.1818:\left(6x-37\right)+1=19.\)

\(\Leftrightarrow1818:\left(6x-37\right)=18\)

\(\Leftrightarrow6x-37=101\)

\(\Leftrightarrow6x=138\)

\(\Rightarrow x=23\)

\(c.\left(x:23+45\right)\times67+3=8914\)

\(\Leftrightarrow\left(x:23+45\right)\times67=8911\)

\(\Leftrightarrow x:23+45=133\)

\(\Leftrightarrow x:23=88\)

\(\Rightarrow x=2024\)

a) ( x + 74 ) - 318 = 2015

=>  x + 74 = 2015 + 318

=> x + 74 = 2333

=> x = 2333 - 74

=> x = 2259

b) 3636 : ( 12 . x - 91 ) = 36

=> 12 . x - 91 = 3636 : 36

=> 12 . x - 91 = 101

=> 12 . x = 101 + 91

=> 12 . x = 192

=> x = 192 : 12

=> x = 16

c) ( x : 23 + 45 ) . 67 = 8911

=> x : 23 + 45 = 8911 : 67

=> x : 23 + 45 = 133

=> x : 23 = 133 - 45

=> x : 23 = 88

=> x = 88 . 23

=> x = 2024

Tìm x, biết :

a) ( x + 74) - 318 = 2015

(x + 74) = 2015 + 318

(x + 74) = 2333

x = 2333 - 742

x = 2259

b) 3636 : (12 . x - 91) = 36

12 . x - 91 = 3636 : 36

12. x - 91 = 101

12 . x = 101 + 91

12 . x = 192

x = 192 : 12

x = 16

c) ( x : 23 + 45) . 67 = 8911

(x : 23 + 45) = 8911 : 67

(x : 23 + 45) = 133

x : 23 = 133 - 45

x : 23 = 88

x = 88 . 23

x = 2024

. là nhân nha

( x : 23 + 45 ) x 67 = 8911 

=> x : 23 + 45      = 8911 : 67 

=> x :23 + 45        = 133

=> x : 23              = 133 - 45 

=> x : 23             = 88

=> x                     = 88 x 23 

=> x                    = 2024

x = 2024                  

Giup toi bai tim x biet : 

x : [ ( 1800 + 600 ) : 30 ] = 560 : ( 315 -35 )

x:23+45=8011:67

x:23+45=8011/67

x:23=8011/67-45

x:23=4996/67

x=4996/67*23

x=114908/67

(x : 23 + 45) x 67 = 8011=> x : 23 + 45 = 8011 : 67 = 119\(\frac{38}{67}\)=> x : 23 = 119 \(\frac{38}{67}\)- 45 = 74\(\frac{38}{67}\)

=> x = 74\(\frac{38}{67}\).23 = 1715\(\frac{3}{67}\)

4/5x(32+67+1)

=4/5x100

=80

học tốt nha

đố ai biết

135 nhân 67 - 35 nhân 67 = 6700

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